diff --git a/sbin/ggate/ggatec/ggatec.c b/sbin/ggate/ggatec/ggatec.c
--- a/sbin/ggate/ggatec/ggatec.c
+++ b/sbin/ggate/ggatec/ggatec.c
@@ -94,18 +94,24 @@
 {
 	struct g_gate_ctl_io ggio;
 	struct g_gate_hdr hdr;
-	char buf[MAXPHYS];
-	ssize_t data;
+	ssize_t buf_capacity;
+	ssize_t numbytesprocd;
 	int error;
 
 	g_gate_log(LOG_NOTICE, "%s: started!", __func__);
 
+	buf_capacity = MAXPHYS;
+
 	ggio.gctl_version = G_GATE_VERSION;
 	ggio.gctl_unit = unit;
-	ggio.gctl_data = buf;
+	ggio.gctl_data = malloc(buf_capacity);
+	if (ggio.gctl_data == NULL) {
+		g_gate_log(LOG_ERR, "%s: Cannot alloc buffer.", __func__);
+		pthread_exit(NULL);
+	}
 
 	for (;;) {
-		ggio.gctl_length = sizeof(buf);
+		ggio.gctl_length = buf_capacity;
 		ggio.gctl_error = 0;
 		g_gate_ioctl(G_GATE_CMD_START, &ggio);
 		error = ggio.gctl_error;
@@ -152,26 +158,18 @@
 			continue;
 		}
 
-		/* Don't send requests for more data than we can handle the response for! */
-		if (ggio.gctl_length > MAXPHYS) {
-			g_gate_log(LOG_ERR, "Request too big: %zd", ggio.gctl_length);
-			ggio.gctl_error = EOPNOTSUPP;
-			g_gate_ioctl(G_GATE_CMD_DONE, &ggio);
-			continue;
-		}
-
 		hdr.gh_seq = ggio.gctl_seq;
 		hdr.gh_offset = ggio.gctl_offset;
 		hdr.gh_length = ggio.gctl_length;
 		hdr.gh_error = 0;
 		g_gate_swap2n_hdr(&hdr);
 
-		data = g_gate_send(sendfd, &hdr, sizeof(hdr), MSG_NOSIGNAL);
+		numbytesprocd = g_gate_send(sendfd, &hdr, sizeof(hdr), MSG_NOSIGNAL);
 		g_gate_log(LOG_DEBUG, "Sent hdr packet.");
 		g_gate_swap2h_hdr(&hdr);
 		if (reconnect)
 			break;
-		if (data != sizeof(hdr)) {
+		if (numbytesprocd != sizeof(hdr)) {
 			g_gate_log(LOG_ERR, "Lost connection 1.");
 			reconnect = 1;
 			pthread_kill(recvtd, SIGUSR1);
@@ -179,18 +177,18 @@
 		}
 
 		if (hdr.gh_cmd == GGATE_CMD_WRITE) {
-			data = g_gate_send(sendfd, ggio.gctl_data,
+			numbytesprocd = g_gate_send(sendfd, ggio.gctl_data,
 			    ggio.gctl_length, MSG_NOSIGNAL);
 			if (reconnect)
 				break;
-			if (data != ggio.gctl_length) {
-				g_gate_log(LOG_ERR, "Lost connection 2 (%zd != %zd).", data, (ssize_t)ggio.gctl_length);
+			if (numbytesprocd != ggio.gctl_length) {
+				g_gate_log(LOG_ERR, "Lost connection 2 (%zd != %zd).", numbytesprocd, (ssize_t)ggio.gctl_length);
 				reconnect = 1;
 				pthread_kill(recvtd, SIGUSR1);
 				break;
 			}
 			g_gate_log(LOG_DEBUG, "Sent %zd bytes (offset=%"
-			    PRIu64 ", length=%" PRIu32 ").", data,
+			PRIu64 ", length=%" PRIu32 ").", numbytesprocd,
 			    hdr.gh_offset, hdr.gh_length);
 		}
 	}
@@ -203,22 +201,28 @@
 {
 	struct g_gate_ctl_io ggio;
 	struct g_gate_hdr hdr;
-	char buf[MAXPHYS];
-	ssize_t data;
+	ssize_t buf_capacity;
+	ssize_t numbytesprocd;
 
 	g_gate_log(LOG_NOTICE, "%s: started!", __func__);
 
+	buf_capacity = MAXPHYS;
+
 	ggio.gctl_version = G_GATE_VERSION;
 	ggio.gctl_unit = unit;
-	ggio.gctl_data = buf;
+	ggio.gctl_data = malloc(buf_capacity);
+	if (ggio.gctl_data == NULL) {
+		g_gate_log(LOG_ERR, "%s: Cannot alloc buffer.", __func__);
+		pthread_exit(NULL);
+	}
 
 	for (;;) {
-		data = g_gate_recv(recvfd, &hdr, sizeof(hdr), MSG_WAITALL);
+		numbytesprocd = g_gate_recv(recvfd, &hdr, sizeof(hdr), MSG_WAITALL);
 		if (reconnect)
 			break;
 		g_gate_swap2h_hdr(&hdr);
-		if (data != sizeof(hdr)) {
-			if (data == -1 && errno == EAGAIN)
+		if (numbytesprocd != sizeof(hdr)) {
+			if (numbytesprocd == -1 && errno == EAGAIN)
 				continue;
 			g_gate_log(LOG_ERR, "Lost connection 3.");
 			reconnect = 1;
@@ -233,26 +237,33 @@
 		ggio.gctl_length = hdr.gh_length;
 		ggio.gctl_error = hdr.gh_error;
 
-		/* Do not overflow our buffer if there is a bogus response. */
-		if (ggio.gctl_length > (off_t) sizeof(buf)) {
-			g_gate_log(LOG_ERR, "Received too big response: %zd", ggio.gctl_length);
-			break;
+		if (ggio.gctl_length > buf_capacity) {
+			char *newbuf = malloc(ggio.gctl_length);
+			if (newbuf != NULL) {
+				free(ggio.gctl_data);
+				ggio.gctl_data = newbuf;
+				buf_capacity = ggio.gctl_length;
+			}
+			else {
+				g_gate_log(LOG_ERR, "Received too big response: %zd", ggio.gctl_length);
+				break;
+			}
 		}
 
 		if (ggio.gctl_error == 0 && ggio.gctl_cmd == GGATE_CMD_READ) {
-			data = g_gate_recv(recvfd, ggio.gctl_data,
+			numbytesprocd = g_gate_recv(recvfd, ggio.gctl_data,
 			    ggio.gctl_length, MSG_WAITALL);
 			if (reconnect)
 				break;
 			g_gate_log(LOG_DEBUG, "Received data packet.");
-			if (data != ggio.gctl_length) {
+			if (numbytesprocd != ggio.gctl_length) {
 				g_gate_log(LOG_ERR, "Lost connection 4.");
 				reconnect = 1;
 				pthread_kill(sendtd, SIGUSR1);
 				break;
 			}
 			g_gate_log(LOG_DEBUG, "Received %d bytes (offset=%"
-			    PRIu64 ", length=%" PRIu32 ").", data,
+			PRIu64 ", length=%" PRIu32 ").", numbytesprocd,
 			    hdr.gh_offset, hdr.gh_length);
 		}